Philips 24PHG4032, Service Manual

Page: 24 / 42

8.2 B 715G7805 SSB
8-2-1 System Power
Vout = 0.6x(1+R1/R2)=3.3V
R1
R2
R778
4.7K 1/16W
R787
4.7K 1/16W
3V3SB
IN VER TER ON /OF F
H : ON
L : OF F
INVERTER ON/OFF
90mil
+5V Switch
Low active
CO-LAY
+5V_SW Q701
AO3401A
CN701
CONN
2
4
6
8
10
12
1
3
5
7
9
11
+5VSB
12V_AMP 6 12V_AMP
BL_ON/OFF
ZD703
NC/ BZT52-B3V6
1
2
AC_DET#
R2
R1
CORE POWER 1.2V
AC_Of f 10
AC_Of f
FB703 120R 6A
1 2
+12V
AVDD1V2
FB702
120R 6A
1 2
3V3SB
FB706
120R 3A
1 2
AC_DET
R788
4.7K 1/16W
Q705
MMBT3904
AC_DET AC_DET#
R714
10K +-1% 1/16W
C714
NC/100N 16V
+
C748
100UF 16V
R717
10K +-1% 1/16W
PS_ON
L702
2.2uH
C712
2.2UF
BL_DIMMING
C710
4.7UF 10% 10V
VCCK 17
C730
10UF 6.3V 20%
+5VSB
L701
2.2UH
6/17
R723
NC 100R 1/16W 5%
GND 4,5,6,7,8,9,10,11,12,13,14,15,16,17,18
OPWRSB
VCCK
DVDD3V3 4,5,6,8,9,10,11,13,15,16,17,18
+5V_SW
DVDD3V3
R725
NC 10K +-1% 1/16W
+12V
BL_ON/OFF
BL_ON/OFF 14
+5VSB
BL_DIMMING
R722
NC 0R05 1/16W
3V3SB
BL_DIMMING
R710
51K 1/16W 5%
+5V_SW 9,10,11,12,15
AVDD1V2
DVDD3V3
R709
22K 1%
+12V 10
+5V_SW
R779
1K 1/16W 5%
+5VSB
R713
2.2K 1%
+5VSB 7,9,16
VCCK
+12V
R724
NC 10K +-1% 1/16W
R786
1K 1/16W 5%
3V3SB 4,8,10,13,14,15
DVDD3V3
Q703
LMBT3904LT1G
AVDD1V2 8,13,15
+5VSB
Q702
NC SM4310PSKC
S
1
S
2
S
3
G
4
D
8
D
7
D
6
D
5
OPWRSB 4
INVERTER_ON_OFF
BL_ON/OFF
Q707
MMBT3904
BL_DIMMING 14
3V3SB
ZD702
BZT52-B3V6
1
2
5/28
B L _D IMMIN G
BRIGHT ADJUST
M ax:3.3V
M in: 0V
Low active
U703
M5723B-33F61U
EN1
1
IN1
8
AG
N
D
2
LX
10
AG
N
D
4
EN2
5
FB1
3
OUT2
7
IN2
6
PG
N
D
9
tG
N
D
11
R780
4.7K 1/16W
C706
1UF 10V
C708
NC/4.7UF 10% 10V
R706
100K 1%
R749
36K 1%
C745
1uF 16V
C747
22UF 10V
+
C707
100UF 16V
L703
4.7uH
ZD701
NC/ LUDZS5.1BT1G
1 2
C731
100NF 16V
AC
_
O
ff
U705
G5695T11U
VIN
1
GND
2
EN
3
VFB
4
LX
5
R751 40.2K 1/16W 1%
VCCK
R747 100K 1%
R748
13K 1/10W
C746
22UF 10V
R
750
1
2K
1% 1/
16W
C721
2.2UF
C742
100pF 50V
U706
SY 8104ADC
LX
5
FB
1
EN
2
GND
3
IN
4
BS
6
C722
10UF 6.3V 20%
C743
0.1uF 50V
C
744
10
N
50V
R729
82K 1%
BRIGHT_ADJ
Pre_12V
R730
18Kohm 1/16W +/-1%
Pre-12V_AMP
R1
12V TO 5VSB
AC _D ET
L = > AC_OFF_DET
7/10
H = > AC_ON
AC Detect
Vout = 0.6x(1+100/13)=5.21V
C723
NC/ 2.2UF
3.3A
R718
10K +-1% 1/16W
R2
DVDD3V3
+5V_SW
Pre_12V
Pre-12V_AMP
Control Interface
LO = > POWER_ON
Main p o wer On /Off co n tro l
HI = > POWER_OFF
L = > DC_OFF
+
C719
100UF 16V
H = > POWER_ON
BRIGHT_ADJ
PS_ON /STAN D B Y
INVERTER_ON_OFF
R704
100R 1/16W 5%
C726
NC/22uF 10V
C725
NC/10UF 10V
C705
100NF 16V
AC_DET 10
R785
100R 1/10W 5%
12V_AMP
OPWRSB
PS_ON
R739
4.7K 1/16W
3V3SB
R705
1K 1/16W 1%
Q708
BC847C
R738
4.7K 1/16W
FB701 120R 6A
1 2
STANDBY
INVERTER_ON_OFF BRIGHT_ADJ
C713
1uF 16V